UAL2365 United
Airbus A319 131 · N839UA · SJC → ORD
· 1:25Quality 79lost lockside-on
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −69%). Download
Trace
Where the aircraft sat in the frame, second by second. Click the chart to jump the video there.
—FOV —az —el —pose —
Loading telemetry…
Lock
Events
Tracking metrics
How well the camera kept the aircraft centred. Tap a metric for what it means and what good looks like.
- Lockshare of the pass
- 83%
- First lockfrom target selected
- 7.5 s
- Centring, medianaz / el while locked
- 0.14° / 0.18°
- Centring, 90th pctaz / el while locked
- 0.78° / 0.45°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 7.0 s
- Time to tightestfrom first lock
- 58.2 s
- Time at telefield of view ≤ 5.5°
- 58.0 s
- Jitter at teleaz / el, standard deviation
- 0.20° / 0.20°
- Swing at teleaz / el, peak to peak
- 2.03° / 1.10°
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 5.52°
- Largest tilt hopin any 1 s at tele
- 3.81°
- Pose error, mediancommand vs camera
- 0.83°
- Largest correctionvision vs prediction
- 1.17°
- Zoom steps
- 42
Aircraft & route
- Flight
- UAL2365
- Registration
- N839UA
- Type
- Airbus A319 131
- Airline
- United
- From
- SJC · San Jose
- To
- ORD · Chicago
- Ground speed
- 282 kt
- Altitude at closest
- 5,875 ft
- Vertical rate
- +2,304 ft/min
- Category
- A3
- ICAO hex
- ab7b8c
Pass geometry
- Max elevation
- 41.2°
- Elevation at start → end
- 23.8° → 16.2°
- Azimuth at start → end
- 342° NNW → 207° SSW
- Closest-approach azimuth
- 281° W
- Minimum slant range
- 2.7 km
- Heading at closest
- 196° SSW
- Aspect at closest
- side-on (84°)
- Turn
- straight (2°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 1:25 (85.1 s)
- Lock
- 83%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-15p — selection hysteresis; auto-cal drops stale bias
- Commit
- b8aa462
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 42.5 MB · 85.0 s · offset -1.1 s
- pursuit
- velocity
- maxLeadSec
- 3
- panLatencySec
- 0.6
- tiltLatencySec
- 0.4
- rippleDeg
- 0.5
- rippleTeleDeg
- 0.25
- maxSpeedStepFwps
- 0.45
- speedReachFrac
- 0.8
- lockedSigmaDeg
- 0.35
- sigmaGrowthDps
- 0.1
- aimLeadSec
- -0.16
- correctionSlewDps
- 2.5
- kp
- 1
- ki
- 0.6
This clip and poster are © Skylight (Cameron Paczek): free for non-commercial use with credit to skylightceiling.com, not MIT. License